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  2. Tree measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_measurement

    Tree height is the vertical distance between the base of the tree and the highest sprig at the top of the tree. The base of the tree is measured for both height and girth as being the elevation at which the pith of the tree intersects the ground surface beneath, or "where the acorn sprouted."

  3. Tree height measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_height_measurement

    An analysis of data collected by the Native Tree Society (NTS), of over 1800 mature trees found, on average, the top of the tree was offset from the perspective of the surveyor by a distance of 8.3 feet (2.5 m), and therefore was offset from the base of the tree by around 13 feet (4.0 m). [17]

  4. Tree girth measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_girth_measurement

    The Tule tree has a diameter of 38 feet 1.4 inches (1,161.8 cm) as measured by tape wrap, but because of its irregularity a cross-sectional wood area expressed as a circle gave an effective diameter of only 30 feet 9 inches (937 cm). The base of the tree was mapped in three dimensions using a frame mapping technique.

  5. Tree volume measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_volume_measurement

    The President Tree (Sequoiadendron giganteum) [3] was measured in 2012 to have a trunk volume of 54,000 cubic feet (1,500 m 3) of wood and a branch volume of 9,000 cubic feet (250 m 3) of wood in the branches. In this giant tree the branch volume was only 16.7% that of the trunk volume.

  6. Tree crown measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_crown_measurement

    American Forests, for example, uses a formula to calculate Big Tree Points as part of their Big Tree Program [3] that awards a tree 1 point for each foot of height, 1 point for each inch of girth, and ⁠ 1 / 4 ⁠ point for each foot of crown spread. The tree whose point total is the highest for that species is crowned as the champion in their ...

  7. List of superlative trees - Wikipedia

    en.wikipedia.org/wiki/List_of_superlative_trees

    Individual trees in the clonal patch have been listed as having ages of 2000 [108] [109] or even to 3000 years old. [110] [111] The olive tree also can live for centuries. Previously the oldest age verified by carbon dating was 900 years for a tree in the Gethsemane garden in Jerusalem. [112]

  8. Tree caliper - Wikipedia

    en.wikipedia.org/wiki/Tree_caliper

    A tree caliper is a tool to measure the diameter of a tree. When used in forestry, the tree caliper tool measures the DBH or "diameter at breast height" of a tree that is growing in a landscape of any kind. The measurement is generally made at 4.5' or 1.4m above the soil.

  9. List of largest giant sequoias - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_giant_sequoias

    This tree was the second-largest tree in the world (only the General Sherman tree was larger) until September 2003, when the tree lost a portion of its crown as a result of a fire caused by a lightning strike. [1] [14] This reduced its height from nearly 78 meters (255 ft) to about 70 meters (229 ft). The structurally weakened tree partially ...

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